11-letter words containing a, u, r
- apatosaurus — brontosaurus
- apodyterium — the changing room in an ancient Roman bathhouse
- aponeuroses — Plural form of aponeurosis.
- aponeurosis — a white fibrous sheet of tissue by which certain muscles are attached to bones
- aponeurotic — a whitish, fibrous membrane that connects a muscle to a bone or fascia.
- apostrophus — a symbol resembling a reversed letter C used in Roman numerals to denote large numbers
- apparatuses — Plural form of apparatus.
- apple grunt — Chiefly Eastern Massachusetts. apple pandowdy. Compare grunt (def 6).
- appropinque — to approach
- appurtenant — relating, belonging, or accessory
- aqua fortis — nitric acid
- aquaculture — the cultivation of freshwater and marine resources, both plant and animal, for human consumption or use
- aquaerobics — A form of aerobics done while in water.
- aquafortist — a person who makes engravings or etchings through the use of aqua fortis
- aqualeather — a very strong type of leather made from the skin of the Nile perch (Lates niloticus)
- aquamarines — Plural form of aquamarine.
- aquarellist — (arts) An artist who paints aquarelles.
- aquariology — The study of the fauna and flora of aquaria.
- aquiculture — aquaculture
- arab league — the league of independent Arab states formed in 1945 to further cultural, economic, military, political, and social cooperation
- arafura sea — a part of the W Pacific Ocean, between N Australia and SW New Guinea
- araliaceous — of, relating to, or belonging to the Araliaceae, a chiefly tropical family of trees, shrubs, or woody climbers having small clusters of whitish or greenish flowers. The family includes the ivy and ginseng
- arbitrageur — a person who engages in arbitrage
- arboraceous — resembling a tree
- arboviruses — Plural form of arbovirus.
- arc furnace — a furnace in which the charge is heated by an electric arc
- arc-boutant — flying buttress.
- archduchess — the wife or widow of an archduke
- archduchies — Plural form of archduchy.
- archdukedom — the territory ruled by an archduke or archduchess
- archegonium — a female sex organ, occurring in mosses, spore-bearing vascular plants, and gymnosperms, that produces a single egg cell in its swollen base
- archilochus — 7th century bc, Greek poet of Paros, notable for using his own experience as subject matter
- arctic skua — a predatory gull-like bird, Stercorarius parasiticus, which harasses terns or gulls into dropping or disgorging fish they have caught; it breeds in northern Eurasia and North America
- arduousness — requiring great exertion; laborious; difficult: an arduous undertaking.
- arenicolous — growing or living in sand or sandy places
- argumentive — argumentative
- aristarchus — a crater in the NE quadrant of the moon, having a diameter of about 37 kilometres, which is the brightest formation on the moon
- armed guard — a guard who is carrying a gun
- armour-clad — wearing armour
- arquebusade — the shot of an arquebus
- arquebusier — harquebusier.
- ars antiqua — the style of composition characteristic of the 13th century, especially in France.
- arse around — If you say that someone is arsing around or arsing about, you mean that they are behaving in a silly, irritating way instead of getting something done.
- art nouveau — Art Nouveau is a style of decoration and architecture that was common in the 1890s. It is characterized by flowing lines and patterns of flowers and leaves.
- art student — a person studying art
- artefactual — relating to an artefact
- arthur monk — (James) Arthur ("Art") born 1957, U.S. football player.
- articulable — having the ability to be articulated
- articularly — of or relating to the joints.
- articulated — An articulated vehicle, especially a lorry, is made in two or more sections which are joined together by metal bars, so that the vehicle can turn more easily.